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Alignment After Accident

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2.5K views 11 replies 7 participants last post by  FatMatt  
#1 · (Edited)
Long story short:

January of 2022 I was hit by a car at moderate speed (approximately 15-25mph) directly in my driver’s rear wheel. There was no visible damage other than some scratches to my wheel.

I took my vehicle to two separate shops to get them to see if there was any unseen damage or any bent parts that needed replacement. Both shops said no, nothing is amiss. However, the first shop I went to performed an alignment on the vehicle and it got back to spec or close to spec, but I noticed that the rear driver’s wheel (the one that had been hit) was not quite as “in line” as it had been the previous time that same shop had performed an alignment. I pressed them on this to make sure there couldn’t be a bent rear axel housing component. They assured me it didn’t appear that there was. However, to my naked eye, the wheel did look ever so slightly toed, when compared to the other rear wheel. This is why I took it to a second shop for another opinion, which also said it was fine. I begrudgingly let it go and hoped they were correct.

Fast forward 1.5 years and it’s time for new tires. I’ve ordered new tires but before I put them on, I wanted to get the alignment checked on that back wheel again because on that wheel alone, there is a lot more wear on the inside than outside of the tire. The other three tires are not near as worn as this tire and are worn pretty evenly. That driver’s rear tire, however, has significantly more wear and is wearing much more on the inside than the outside.

I have attached the pre-alignment specs (didn’t get it aligned yet) and a photo of the west on the left/driver’s rear tire. The alignment specs show current front and rear with rear being the ones at the bottom that have no green or red coloring. The driver’s rear is shown in the photo as ‘Left’ and at the bottom of the image.

Does it seem like the specs would indicate a slight bend or issue? I may be too hyper-focused on this issue, but it seems off to me due to tire wear and visually. Also, I have had a previous FJ that was hit in the passenger’s rear and required a new rear axel housing, as components on it were bent.

To note, I never signed off on anything with the at fault driver’s insurance and technically have another few months before the period in which I can make a claim expires.

Thanks for any help!
 

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#2 ·
I agree that doesnt seem right...the rear is essentially not alignable at all....they just adjust the front and compare it to the rear when they do alignments.

That is, unless you have any aftermarket adjustable links ect.

Sure seems like something is bent to me as that is bad wear for a rear tire. What PSI is that tire at? Same as all the rest? Want to make sure someone didnt overfill just that one as uneven as it is...the middle sure is worn more.
 
#4 ·
All tires are filled to the same psi. The others are worn evenly. I wouldn’t even be so concerned if the tire wear was in the middle, but this tire wear is on the middle and inside, while the outside inch or two still has the same amount of tread that all other tires have.

And no, I don’t have any aftermarket adjustable rear links.
 
#6 ·
First thing I would take a closer look at is the hub bearing. The slightest play might appear fine sitting on the alignment rack but could shift slightly under load.
 
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#7 ·
That's not a very good alignment sheet but I assume the bottom middle is thrust angle and that seems high to me. The rest of the numbers are fairly useless to me since I don't know what they are measuring. Labels?

Can you figure out the actual spec from Toyota for the front and rear 4 wheel alignment and if they can't match that then its bent or the links are bent and needs replaced.
 
#8 ·
Definitely needs labels and it also looks like they didn't even do a caster sweep to get those measurements. I would highly suggest that if the shop you're using doesn't have the know-all to perform a proper alignment you don't want them working on your suspension at all. Like FJtest and Iconic_ said in your other post "there's some fishy BS here" (combining quotes). Get an alignment check at a reputable place and get back to us.

Roh
 
#9 · (Edited)
A bent axle housing would case uneven tire wear like that. I had a ram pickup that was hit in the passenger rear, insurance replaced axle and bearing but I was getting similar tire wear to you and premature bearing failure. Turned out the housing was bent, have it checked as an alignment will do nothing to fix it.
 
#10 ·
an alignment will do nothing to fix it.
Agreed, but a good alignment shop has the expertise to tell when the problem is a bent shaft, a bent frame, or something else. If someone doesn't know how to use the alignment machine it's probably unlikely they have the skill to diagnose this and will just keep replacing parts at the owner's expense.

My guess is also housing or bearing. If it was bent linkage somewhere both sides of the rear axle would change, you'd have one side with positive toe and the other negative toe. If only one side changes than something happened outside the linkage mounts.

Roh
 
#12 ·
Just my opinion as I'm not an expert:
The only way that tire would wear more on the inside is if the inside of the wheel is lower than the outside of the wheel. That screams to me that something got bent. Toyota's lower control arms are quite wimpy from a lateral direction. Your comments state that two shops said they "looked" fine. The smallest amount of bend in any component may not be visible but enough to throw off the alignment. I would take it to a good body/collision shop.

Until someone actually starts measuring things you'll never know.